I tried to update the post but I cannot anymore.
The trackpad would be "stuck" not clicking, in the same way when the MBP is off, but the cursor would work and it'd randomly get back to click normally.
It may be more likely software related as the trackpad hardware per se is in perfect state in the sense it works normally when it comes back from being "stuck".
Tried as oriented by apple support to reboot in safe mode with no success having it happened twice again after that. Also as in another post to lightly tap on the back where the trackpad is located in case perhaps any debris could cause it not to work properly, however as this issue happened more times I suspect as said above is a software related issue.
I'm trying to figure it out this issue's reproducibility steps but it happens randomly after a period of idleness when it's off or sleeping with the lid closed.
I recently tried to reset the PRAM and will report back if anything changes.