Yes, this is a fairly typical scenario, as all top schools care about their initial yield. The higher the yield, the less paperwork it will be, and the easier it will be to manage the wait list, athletic programs, dorm assignments, etc.
Certain senior consultants have, over their career, established strong relationships with admission officers, and even directors. The conversations can be two way: (1) Consultants will advocate their candidates (clients) to the AOs; and (2) AOs will try to gauge the level of interest/commitment to the school by way of the consultants. In the latter scenario, AOs get to enhance the initial yield, which is desirable.
Given that the consultants have a strong need to maintain a relationship with the AOs, they usually tend to convey highly reliable messages. Imagine if a consultant told a school, “Yes, this student will DEFINITELY attend if they get accepted,” and failed to deliver enrollment in the end, then the bridges would be effectively burned.
As you could well imagine, a competitive school may say “There are several students that we like from your pool. We will only accept your child if our school is your top choice.”
A more subtle way of asking your level of commitment is: “If we were to extend an offer to your child, will they attend our Revisit Day?”
Other positive signs include hearing from a specific coach or a music/debate director, which typically takes place around this time, or slightly earlier.
Consultants come in various shapes and sizes. Some only help you put together a list of schools, while other could be VERY, VERY involved - they try to curate the student’s profile in ways you would never think of, for exorbitant fees. For example, some might ask your student to change their sports or musical instruments in 5th grade just to cater to certain schools. I am not a fan of these consultants, but they are out there milking big bucks - particularly from Chinese and Korean families who believe that boarding school is their only ticket to a T10 university in the US.