The issue is, that Ronaldo, up until the 2016-17 season was one of the greatest free kick takers of all-time with 51 goals from them. And he holds the all-time CL record as well.
But in the past two seasons, he has two free kick goals total (one with Spain, one with Madrid), and that's just sad as shit.
Thankfully, he only attempted 16 free kicks (well, as of May 2nd, so it could have gone up one or two since then) for us this year. It's still too many, given how appalling he has been at them the last two seasons, but it's a fight, with a GOAT level player with a huge ego, that a coach has to decide if it's worth having. Neither Zidane nor Ancelotti thought it was, and nor did Allegri, though Allegri clearly created a FK platoon based on location, which allowed Dybala and Pjanic some opportunities, if not enough.
Anyways, it's an issue, but not something to blow out of proportion or bash Allegri for. This one's entirely on Ronaldo and his ego.