Notice your post has no likes and the OPs has 9.
You make solid points, but theyre not very good ones.
Summoner is a weak job and always has been. Idk if youve played as long as me, but for the first 3-4 years it was basically just a gimp whm with pred claws. It's changed a lot since then, but this job is not a solid one. SMNs are only semi-ok at everything and that's a problem imo.
Idk what parties you play in these days, but smn buffs imo are prett much lol and you would be better off coming another job if thats your main focus. If your main focus is dd, ud also be better off coming a dd job. This is true for other jobs, but smn is probably the worst job at being OK at everything (cures,buffs,dd). It's trumped by every job it can assist in and so much in such a way that playing smn outside duo/trio type situations when you have other jobs is pretty much a strain.
This job needs an extreme decrease n bp timer or to remove it entirely. I think bp timers should either be 10-15seconds MAX or nothing at all. That would really make the job damn good and without gamebreaking. Why? Because the bps are so mp costly, outside abyssea. smns will actually have to worry about mp conservment with lower/no timers.
You're right about some things, but you're giving smn way too much credit and i'd bet you don't play it often or at all.
just my two cents, cause no one who is a career smn or loves playing smn in party situations would share this opinion. This job needs change. Badly.