>Had this been in a wall cavity, this would have been a nightmare.

Which is why pretty much everyone except the manufacturer advocates for not installing in a wall/floor.

I'll also note that their warranty is very explicit that they will only pay for property damage, resulting from a failure in workmanship or materials, if the fitting was installed by a licensed professional. And on the case of use in a wall cavity, if there is proof it was pressure tested before sealing in. And even then, only for the materials (lumber, drywall, etc), and not the actual labor costs.

End of the day, the only time you should be using a sharkbite fitting is for a temporary repair when you lack the materials/ability to properly repair via sweating or the clearances to be comfortable doing it yourself.