Would you use an investment broker who censors your inbound email?

I was astounded to receive the following email today from investment brokerage firm Raymond James in response to a message I sent one of their brokers...

Your email has been detected by an automated system at Raymond James as possibly
containing inappropriate wording and/or phrases. This system has deemed your email
to be inappropriate for business communication; therefore it will not be delivered
to the intended recipient as per the Raymond James corporate email policy.

If you wish to resend the message, please review it for any questionable wording to
be sure it isn't rejected again. If you feel you have received this message in
error, please contact (withheld)@RaymondJames.com. Please do not include the
original message, as it may also be rejected.

Read more... [1] I was actually contacting a broker at Raymond James because I rent an apartment from him and I determined there are serious lead hazards in the property - as I don't have a different email address for the broker, I sent a personal message to the broker's office email, as I always do to communicate with this landlord. He probably shouldn't use his office email for personal business communications, but that does not excuse Raymond James from obstructing their business as usual, especially as the investment world is very mature, time-critical, and supercharged.  I wonder who wants to do business with grown adults who need their IT department to filter their messages for inappropriate content - if a customer wants to communicate harshly with a broker, the customer is always right.

I'm curious if anyone thinks it is good for corporations to censor adult employees' email from customers (or anyone else) for inappropriate content?