27 minutes really isnt excessive for a standard a320/737 flight. Most Airlines expect no more than 30 minute delivery time, 40 for charters with full baggage loads. If you think bags just magically roll out of the hold, onto a trolley and straight into the baggage hall you may want to do a shift as a baggage handler. Peoples expectation of these things really are surprising. Even if it was an Embraer 27 minutes isnt the quickest but certainly isnt worthy to complain about.
You also might want to read Bristols twitter psge which is constantly covered with complaints about baggage delivery. An hour, sometimes over 1.5hr wait times.