Tbh, my biggest issue with the way Oda is using Luffy at the moment, is the fact that he feels the need to have Luffy jump right into G5, when he clearly got a massive boost to his base on Wano, and was able to go toe to toe with Kaido, without any gears.
Utilizing the drawbacks of a newly awakened user is fine, because it makes sense that someone can't just awaken, and be just as proficient and accustomed to it as someone who has had it, and practiced it for a long time.
Making Luffy use G5, thus making it a necessity to have him stalled out for awhile, when he clearly has the means to fight without it, before needing to use it to finish the fight is what's annoying.