This bill should be written to include amateur (ham) radio operators too. Because of the fact that in case of emergencies/disasters, the hams usually get involved on a voluntary basis to use their communications to assist public safety officials in whatever community it's needed. So hams should be able to monitor pertinent comms so they can provide better assistance.
Passing a 35 question multiple choice test with ≥70% score shouldn't allow any special access. If amateur radio operators want to participate in an emergency, they need to work within the incident command structure.
As for the rest of the proposed bill, It will be interesting to see where it goes. Some agencies have allowed media access, some have not. How agencies react to being forced to give access may or may not go over well.
There's more financial challenges to this than just recovering the cost of the radios. Periodic rekeying will either require hands on the radio, or someone making sure the radio gets OTAR'd.
And then there's nothing to stop an agency from rekeying radios and "forgetting" to update the media's radio. Or from setting up talk groups that are on the system but not in the media radio. Or any number of approaches that will keep this from working.