This has not been consistently enforced.
For example, when I attended the downtown Masses at Suntec last
year, Fr. Terence Pereira was very clear about not holding hands.
But elsewhere, the priests do not seem to have gotten the message
across.
In any case, this is minor.
I had worse experience before. I was once in San Jose, California
and for 2 weekends endured a parish (because it was the closest)
where the pews had no kneelers and so the people did not kneel
during consecration, where the words of Scriptures were changed to
be gender-neutral, and where everyone recited the final
Doxology.
I was very tempted to walk out and shake the dust off my
feet.
obiterdicta