Drury did not agree, saying Woodward had built too much cost into its model.
The analysts also said Xero faced an expensive, difficult task gaining market share in the US where its major competitor, Intuit, was already "way ahead" of the New Zealand firm.
"Instead, would it not be more prudent for the board to use its remaining cash balance to consolidate [Xero's] relatively stronger market positions in NZ, UK and Australia?" they suggested.
Drury said more than 75 per cent of the US accounting market did not use Intuit's Quickbooks accounting product.
"It's a massive white space market," he said.
"We're just getting started in the US and it will take some time."
Xero shares, which hit a record $45.99 in March, closed down 45c at $17.50 yesterday.