The only service I actively argued for at YXD was FBO based Part 703 and 704 service which is capped at 19 passengers (Metroliner, Twin Otter, Beech 1900 etc) and was of no detriment to YEG what-so-ever.
I think the people who drive to YYC from Edmonton are insane.
But the same administrative paranoia that threatens YXD will also sink any HSR proposal. Despite strange claims by EIA of a "back-door hub" nobody was climbing off Quikair in Calgary behind the Deerfoot Walmart so they could take a taxi to the passenger terminal, a great distance away and get there in time to board another flight to some far flung destination. Just as nobody would take HSR to downtown Calgary and trek up to YYC - especially given how expensive fares are likely to be. But there mere fact it is possible will be enough to unleash the same paranoid forces against HSR.
Then there is this passage in the report by Alberta Infrastructure and Transportation:
Regarding the Air service, the HSR mode may provide in future access to the airports YYC and YEG. Under the station plan being considered in this study, HSR is not planned to access either international airport. However, a future suburban Calgary HSR station will likely be located in closer proximity to an airport than a suburban station in Edmonton.
If this force can be ushered to kill this white elephant that is just great.