I would happily wager that the BHD turnbacks had more to with SOPs and pre-flight set up than genuine a/c gremlins, especially in the early days of the operation. It will be exactly the same with the E195 - crews coming from much older technology onto new technology and not leaving the more complex systems enough time to 'do their thing' before hooning off into the wild blue yonder. No criticism of the crews intended.
As for the Dash 8's gear, well I've smashed it into the tarmac often enough that if it were a bit fragile I'd undoubtedly still be picking grass and gravel out of my teeth.
