Point being for below 30 min you pretty much need two stairs so there are no dual turnaround targets, rather the airline might selectively choose to use remote only. Also, failure of turning on time has financial implications for the GHA. Having a SLA that specifies turnaround extra of 5 mins = 300 EUR penalty is not unheard of. Then it's fair to allow 3 minutes for engine start, once things are getting Excel'd. If the Teutonic system come up with a dedicated delay code, nobody really is surprised.