I didn't know there was such hostility towards RTE making studio sitcoms. Would it be comparable to how, arguably, people see ITV trying to make studio sitcoms?
Worse.
The hostility mainly comes from early 1990s newspaper sitcom, Extra Extra Read All About It, widely derided at the time as one of the worse sitcoms ever made. Disappeared after one season and never repeated. RTE had better success later in the 1990s with lottery winners sitcom Upwardly Mobile, which the critics hated but the public liked well enough for it to run for three years. After that though, I struggle to remember a traditional, studio set sitcom with an audience (or even canned laughter)that RTE have produced. It's not to say that RTE don't do comedy though. They've done quite a bit of panel shows (including probably their biggest comedy success The Panel, which ran for around a decade) sketch and impersonation shows (Bull Island, Mario Rosenstock, Oliver Callinan, and the Republic of Telly - a show that started as an initiation of Harry Hill's TV Burp but turned into a sort of sketch show with elements of its original format remaining), and comedy dramas (Raw started as one, although the comedy got toned down after the first season). But no, they can't seem to do sitcoms right at all.
Their latest attempt has been "Bridget and Eamonn", a spin off of a sketch from Republic of Telly about a married couple in 1980s Ireland, but I'm not sure it's a sitcom in the traditional sense - more like a sketch where the (one) joke is being stretched across six episodes. It's proved popular enough for a second season though.