Would you have said that if vote was to remain?
Yes, because I am a lawyer, and as a matter of law, it was an advisory referendum. It's not a matter of opinion.
If advisory why did the UK Government trigger Article 50 and spend 2 years trying to make a deal if they could ignore? Both Conservative and Labour in the 2017 election said they would honour the result of the referendum.
Because the Tory party is full of swivel eyed loons who want Brexit at any cost and Theresa May wouldn't have lasted five minutes?
As for the 2017 referendum, well Jeremy Corbyn is at heart a Brexiter leading a broadly pro remain party, which gives rise to its own problems (not least because the 48% were effectively disenfranchised as they had no real option to vote for a pro remain party). But it's worth pointing out that the 2017 election was nearly two years ago. At that point there were probably still quite a lot of reasonable people in parliament who thought it would be possible to get an OK deal and strike a compromise people could live with.
Why did Scotland not go ahead with Independence in 2014 if referendum was only advisory and the 55% who voted to remain in UK could have been ignored?
You're drawing a false equivalence here between a changing the status quo and keeping it. Changing the status quo is necessarily more difficult and complex than keeping it.
Scottish voters instructed their government to "do nothing", i.e. maintain the status quo. Seceding from the UK would have been difficult and complex enough even with the consent of the Scottish voters. (And if the vote had gone their way they may have run into just as many difficulties trying to actually implement it as we have with Brexit, and changed their minds.)
Trying to do it without their consent would have been unthinkable (not to mention illegal). And of course, when you vote to maintain the status quo you always have the option of revisiting that decision again in the future, because you have not made any irreversible changes.
It's not quite the same as parliament deciding, in 2016, 2017, 2018 or 2019, that leaving the EU wasn't/isn't actually possible without causing an unacceptable degree of harm to the country, and that therefore they were/are not going to implement the result of the referendum.