Nintendo have thousands of employees, already supported HTML5 games on Wii U with the Nintendo Web Framework, and then took that away for the Nintendo Switch. They have vast resources and already did the work to support Wii U.
Meanwhile we have a handful of employees and have extremely limited resources given what people ask of us (I estimate our feature suggestion platform has about 10 years of work submitted to it given our current size).
Why put the pressure on us over this? We can barely keep up with everything we have to do already, and even if we took it on, it would have a severe impact to all other Construct features and users (think no more C3 updates for a year while we toiled away on a huge port). Meanwhile Nintendo could easily assign several developers to build a web framework for the Switch if they felt like it, and it would be a negligible cost for them. Why not direct your frustration to them? As I said before, the most likely way to get Switch support for Construct 3, is if Nintendo are persuaded to support it - and the more people contacting them, the more likely they are to do it.