Speaking as a periodic screenreader user, I have no issue with how that's been written. It's a little condescending to people who know what they're doing, but it's not something anyone would take offence to.
If it's the support text around a form, it makes total sense. The issue will be if the form's not semantically marked up.
If it uses an
a rather than a
button element, it'll be read out as "Link. Submit." rather than the more usual "Button. Submit." or "Button. Cancel." Screenreader users expect that if the help text around says something, that's what they can expect to (approximately) hear.
div instead of a
button that's a lot more serious.
Don't rely on
aria if you can get the developers to use proper, semantic markup first.