[whyhellothere]

You are right to question this. There does seem to be a bit of a long standing myth that ALL javascript is bad for accessibility: http://www.brucelawson.co.uk/2011/javascript-and-screenreade...

In this case though, from an accessibility point of view there are a few issues with the use of a link tag rather than the standard form 'input submit' or 'button'.

Problems include:

- It goes against user expectations of how the form functions

- User would not be able to submit the form while focus is on one of the inputs (although this could be remedied with more js)

- User would have to realise that this form does not have a standard submit button and realise that the link tag is the submit button (difficult for screen readers because there are no alt tags).

There is also an issue with usability for the few who don't have js enabled, as they will not be able to submit this form.