For these reasons, it is requested that this change be implemented in a coordinated manner on May 15th.
This is too imprecise, and the problem is that the technical description section, which is supposed to provide the precision, points to a study report by BU instead of a technical specification part.
Yes, it is the onus of the CHIP writer to provide such a technical description, to the best of their abilities, or seek to involve others to assist them.
I’m thankful to @BigBlockIfTrue for stepping in and doing this for the OP_RETURN proposal already, it should be dead simple for this CHIP as you point out, it is only removing the limit at an exactly specified time.
FWIW, there was discussion in BCHN about exactly how to do this - MTP, wallclock time or block height, and we settled on using the MTP activation which everyone is well accustomed to.
This means we (BCHN) activate this delimiting when
the BIP113 median time is greater than or equal to 1621080000 (2021-05-15T12:00:00Z)
I hope this provides more detail to this discussion.