It is totally reasonable to criticize length of detention while denying the right to a reasonable trial in general.

However this just happens to not be applicable in this specific situation. The guy entered a guilty plea and so will not be released anyway, and he himself requested the case be dismissed causing the delay. If he went along with it, he could have had a trial sooner but wants the delay in hopes of having it dismissed. Which is totally sensible and he has literally nothing to gain by having the trial sooner given that he is almost certainly due for years of imprisonment under his guilty federal plea.