I don't disagree, and like that Pop was asked that question and answered truthfully. It tells us that the coaching staff has definitely noticed this is an ongoing trend, and that they're taking steps to work on it. What I do disagree with, is posters expecting the issue to be solved overnight, when it's not realistic. Players usually don't work on their games during a season, and especially so during a schedule as condensed as the Spurs' to end this one - Jakob will probably go through some form of "getting locked up in the gym till he hits 100 FTs in a row", but we're not gonna get that until the off-season at the earliest. As Dex says, it's probably gonna get worse before it gets better...
And it's a damn shame that the bad FT shooting shadows over the rest of his amazing game, and leads posters to stupidly think he hasn't improved on or worked on his offense. He's getting noticeably better, to the point that the fact that he has a double-double isn't even a passing mention for him anymore. Of course we're gonna hear all about it from ST Experts™ once he has a 4pt game though, but that's just how it is I guess. He has to get better at FTs, no doubt.