There certainly are a lot of non expert experts out there.
Reading from a current QRH, and sorting my old mind out as to what from all the C$ap written before as well as some good guts, the following seems to be the situation.
Engine failure-complete the required presented actions from the electronic and written checklists, and the statement usually says "land as soon as PRACTICAL
Engine failure with DAMAGE-complete the checklists which usually(type specific) contain the instruction to pull the fire shut off and fire ONE of the bottles as a PRECAUTION.
The manufactures and the relevent approving authority make this part of the certification of the type.
Then the phrase is LAND AS SOON AS POSSIBLE.
Quite a different set of rules.
The local Airport Authority may have an emergency plan which requires the attendance of all or some of the equipment to be in place for such a situation, regardless of the call from the crew that it is so called "not needed", bearing in mind the crew have the call to ask for ALL and ANYTHING they consider needed above and beyond what the locals may consider adequate. Newman will take 30 mins to get it all out and organised, simple logistics, if you have an UNPLANNED emegency, they will also take 30 mins to get there while it bubbles and possibly burns.
If you want Airport Stand-by, pay the fees and the airfare to support the process.
The rescue of the Aircraft is a long and logistical process in Australia as there are very limited facilities in most of our RPT ports for engine changes, not like Europe etc.
Cheers