It is not correct that players are not able to play the decks they want to play because - primarily - effects that generate a lot of triggers either crash the server on a trivial amount of tokens or are simply unplayable due to being frustrating.

In addition to those decks there are plenty of deterministic combo decks that are unplayable due to punishing timer system that prevents playing out a winning turn.

If there is nobody on your team who enjoys playing these type of decks - eg Jenny/Jonny types - then you need to hire some or speak to R&D who surely have plenty of players who do.

If there is, which I assume there is because devs tend to be Jenny/Jonny's, then why are they not speaking up when their decks, presumably, are not working or playable on Arena? If they are speaking up why are you not listening to them as a team?

Magic is a deckbuilding game but it is beyond sad that the player psychographics that cares most about creative deckbuilding is currently under-served by Arena AT BEST and at worst simply cannot play many of their decks because they are non-functional or too frustrating to use.