Not really. When Creator & Sophia came out, new gears were introduced. Shire (iL260) & crafted (iL250).
So I don't think iL matters too much. About experience, some groups care about it, others don't.
If you start early in the patch or few weeks before you'll find many groups recruiting. When I first started raiding I was not asked about my raid experience. The leader was recruiting players based on the job/s they played and dummy check. That is it.
But people go on looking for statics very late into the patch. That is when most people have already cleared it and got better gears. At this point you either have experience with current raid or it will be very hard to find a static.