People will moan if there's a leaflet and they will moan if there is isn't. Cameron's pre-Referendum one stated quite clearly that leaving the EU would mean leaving the Single Market and the Custom's Union, yet Remainers still insult Leavers because they say they didn't know what they were voting for when every household was told this fact by the PM.
May's Deal was actually leaving on No Deal terms too; it just gave an extra 2 years of continuity in order to negotiate one, BUT only after we had given the EU £39 billion and let them continue to rule over us during that process so you can surely guess how good a deal would have been offered. Didn't they want over £70 billion in the first place?
Trading on WTO terms is just a starting point if we leave with No Deal. Liam Fox had indeed already negotiated Free Trade agreements to continue with several countries which had similar terms with the EU, like Switzerland, Mexico, Israel and S Korea ( yes, the EU is willing to give those countries a Free Trade Deal but not us, apparently!).
The EU has never been our friend or ally; they just want our money and to flood our country with their subsidised goods, at our expense too! If the price of some foreign imported goods go up in the shops for a while after Brexit- guess what- you don't have to buy them- then sit back and watch the prices fall if there's a glut. If we lose a bit of export trade, initially, for our own home produced goods then step in and buy more of those British goods instead to keep our own companies afloat until trade deals with those countries are finalised. That is the patriotic thing to do, and not to keep on singing the praises of some power crazy foreign enterprise we unwilling joined in 1973 thinking it was just a trading agreement.