It is sad for people who loved the job how it used to be, but Arcanist/Scholar/Summoner is massively popular as the noob job for new players coming into the game. I think it is fine if one dps/healer/tank job has a more simplistic rotation. I started with this job and it is often recommended to new players due to the diversity of job. I've moved on to other jobs now but out of all the jobs I have played, I found Summoner to be the most clunky, it seemed unnecessarily convoluted and was extremely difficult to put out some decent numbers if your ping wasn't so hot, the pet seemed to not trigger a lot of the spells it was meant to cast.