Does the desynchronization of some bands mean an increase in the prevalence of the other bands?

In this article, Broadband Cortical Desynchronization Underlies the Human Psychedelic State, this sentene is said:

Psilocybin reduced spontaneous cortical oscillatory power from 1 to 50 Hz in posterior association cortices, and from 8 to 100 Hz in frontal association cortices.

I’ll abbreviate posterior association cortices to PAC, and frontal association cortices to FAC.

As found out in this question, the above sentence really means that after psilocybin intake, the brain waves present in the PAC are high-level gamma frequencies, and the brain waves present in the FAC are delta and theta frequencies. They are the ones left, since the other bands were desynchronized away.

Now, since these are the bands left, does that mean that they are more prevalent? Does that mean that the PAC will be operating fully on high-level gamma frequencies and therefore there’ll be more of these frequencies in the PAC than usually?

If so, does this mean that the senses of which the PAC is responsible for, will be heightened, since the gamma frequency is a higher frequency, meaning more information is passed in less time? And does that mean that the senses of which the FAC is responsible for, will be diminished, since the delta and theta frequencies are the lowest?