As much as i want to disagree i get the sentiment.
Everyone can pick a job and "play" it, But to understand how the systems impact one another aka the reasoning behind them it needs a bit more than just get it to 80 and do dungeons. Add to that the fact people honestly dont care about said interactions and simply spit out what they themselves consider to be their ideal changes and you got this mess.
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Im not going to overly judge people who want bahamut trance to be a thing. Im ashamed to say i wanted that at some point, but then i learned and i played and i even got an example where bahamut not being tied to trance is godsent. E6s where ifrit jumps so that both can come down. This happens during trance , now if it was pheonix then you would have to lose a summon during the end cause you would have to w8 for the jump to happen, or you would still use it and lose half of pheonix. But cause its bahamut and trance you can just trance and simply end it just before he jumps , missing only 1 measly gcd and then get the whole summon phase out with the greatest of ease instead of losing a whole summon.
For people who say they love the demis theyd want pheonix to be like bahamut and not the opposite, it is the spell transformation that they enjoy and it would be 10 times better to just move that to the summons like i proposed.
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But it simply doesnt end there the constant bickering from the groups that only enjoy parts of summoners and not the whole package, the utter disregard of how their ideas would impact balancing in favour of spectacle, the hate it gets from other jobs not just the 2 casters but everyone else due to how much value it carries. The devs allow blm to have that much dps cause its hard , but when smn comes they say they dont want to balance with difficulty in mind even though smn is supposed to be overloaded , cause he summons gods and creates myriad of different effects. Not only that we got the people who arbitrarily choose how much of summoner is summoner or final fantasy and its just a recipe for disaster.
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The forums are clogged , the job simply put hasnt got a place where it can introduce the ideas it needs in order to develop, and i mean every part of it not just the demi part. You can see people asking for a change but the job is popular, you can see outside of the forums people enjoying it the job and what it currently brings, some are new some are not new, old players usually compare summoner with itself since it changes twice per expansion, while in the forums people compare it with its past iterations with an unfair degree of arbitrary. On the other hand we know yoshi p doesnt play it , and the 5.0 changes where a massive downgrade exasperating the notion that maybe the devs dont know what to do , which is a bit understandable given the nature of each summon being a phase.
So we cant give info for development and the devs dont know what to do since its a hard task to take.
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Summoner discussion in the forums is like you brought a friend for pizza, he goes ahead he says he loves pizza to death and then goes ahead and eats only the toppings, then says it sucked.