Not at all surprised by Maia, as my opinion of her is sky-high.
Silly girl if she's completely dropped Juniors. If she played Roland Garros Juniors, she would have a half-decent chance of winning it; which would be worth a good 10,000% more to her in sponsorship deals, etc, than the prize money for the winner of this title. She'd do well to ensure she has sufficient Junior points remaining to make the starting line.
Her running points total is now up to 19 = WR800ish, with nothing to defend until November. She could end the week as our top Scotswoman (I think), and overtaking Gabi as KS's nearest Junior pursuer.
Clearly she's not another Serena/Kvitova/Pliskova/Robson/Broady/Swan; more your Hingis/Henin/Radwanska/Li Na/Watson/Kasatkina type; which is fine by me.