I think 1vs1 it is only Jokic mindset that could stop him, while 1v2 I think Towns and Gobert did a decent job and I totally see that Allen+Mobley could do damage too (but there are no statistical evidence)
Then if you look at numbers last year the only team that make Jokic look bad was Chicago for some reason. 13ppg in with 55%FG and 60%TS in 2 games is the worst he had with any team (still a +11.5 tho). Another notable was Utah, with more relevance too. I think the length of the Jazz really bothered the Joker in RS vs them.