Well, yes, I'm making a comment on the internet about my negative experience with Air Canada and CTA in about 15 minutes. The claim itself had all the information and took hours to compile, I'm not sure how long it would take for me to simplify that point by point without still missing something.

    - The delay was caused initially by a safety critical instrument being recognized as faulty, which required the airline to seek a replacement aircraft. This was deemed out of control of the airline, with subsequent staffing and catering issues cascading (in airline's control).
    - CTA stated that because the primary issue was safety critical and outside of their control, passengers were not due compensation.
    - CTA made no acknowledgement of the claims that 1) Air Canada did not inform passengers the nature or possible length of delay, 2) did not offer any rebooking, accommodation, or food/drink during extended layover, and 3) the Regulations Amending the Air Passenger Protections Regulations (https://otc-cta.gc.ca/eng/content/new-refund-regulations-now-force) which requires the airline to at least communicate but in many cases offer reimbursement regardless of whether an incident is in or out of their control.
    - Flight was booked with Air Canada.
    - Cab ride was at our final destination, from Tokyo NRT to Yokohama where family resides. Instead of landing in the afternoon, it was well past normal arrival hours and everyone staff included was clearing out. By the time we got outside, taxi stand was empty, nobody was around, airport was locked behind us. Waited approx. two hours before one randomly showed up. (Yes, we were trying to call any local services in the meantime but of the ones which I could actually connect to without a local # none were actually able to send a driver to where we were.)

When Air Canada submitted their response initially I was impressed because of the level of detail it revealed, including snippets of flight and maintenance logs. However, in reading the response from CTA I gather that was their strategy to dump as much info "in good faith" to make it appear that they really did their best and then the reviewer will more likely take it at face value. I am still genuinely perplexed that they addressed Air Canada's response point-by-point, but not the claim itself which was hinging really on the new regulations.

Obviously I don't want to fly on an aircraft with knowingly compromised safety, but if they had simply alerted passengers what was happening and what to expect then I would've arranged a pick up in advance or requested that we catch a flight the next day. Throughout the delay, I received 4-5 texts simply saying there was a catering issue that would be resolved "soon".