That's so formal.
In committees that I've sat on before, which were not those ones, it wasn't in the routine motions. However, the chair always did do that, and sometimes, if we were running out of time, he would shorten the time to three minutes per party.
There's lots of discretion for the chair to do that, and there's certainly the will to hear from all parties. I don't know that we actually need to amend the routine motion, but given the discretion the chair has, there's certainly a desire to hear from everybody when we have the time.